Hi Alex
I must admit I am very impressed with your scope inventions and cost as well as tinkering they are winners. Just keep in mind that the smallest of your scope inventions is about 10x the size of a TV-60 and when, for example, you are like Mathew on a 6 week Italian holiday with nothing but carry on luggage they might be a little on the large size.
With the exception of the NP-127 (which I haven't had a chance to use) I would rate the TV-60 as the most impressive refractor made by Televue in terms of innovative design and what it acheives with 60mm of fine glass is amazing. It is easily better than the Tak FS-60 I previously had.
There are however two big downsides to it -1) price (best ensure you are seated when you check the price) and 2) It can only accept a 1.25 diagonal.
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